Where this would be useful is if you want the specific detail from the supplier Bill in the Bill info in SageCM but the PO may have been less detailed or even a lump sum figure.
Currently if scan a bill using OCR and its for an exiting PO and you convert then realise its relating to a PO and create Bill from PO it just diverts to the normal Bill from PO process losing all benefits of scanning the bill using the OCR tool in the first place.
The way the OCR tool currently works its only useful where someone doesn't use POs and only works with Actual costs